?cor.test and the help page says:
formula: a formula of the form ~ u + v, where each of u and v are numeric variables giving the data values for one sample. The samples must be of the same length. On 1/12/08, Joe Trubisz <[EMAIL PROTECTED]> wrote: > Hi... > > I'm trying to understand the following syntax: > > cor.test(~mortality + hardness,data=water,method="pearson") > > which is the same as: > > cor.test(water$mortality,water$hardness,data=water,method="pearson") > > Can anyone point me to the correct doc or explain to me how to > interpret "~mortality + hardness"? > > Thanks, > Joe > > ______________________________________________ > R-help@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. > -- Jim Holtman Cincinnati, OH +1 513 646 9390 What is the problem you are trying to solve? ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
